Why does a bowling ball move without acceleration when it rolls along a bowling alley?

Please go back to your basic basics.

. F = M a

When the bowling ball leaves your hand, there's no more horizontal force on it, so there can't be any horizontal acceleration.

There IS vertical force in it, applied by gravity. But the floor prevents it from accelerating vertically.

The charge of an ion with 55 protons and 52 electrons is +3. the reason is because protons are positive, and there are three more than the amount of negative electrons.